What is the office of management and budget (omb) is part of the

The correct answer to this open question is the following.

The Office of Management and Budget (OMB) is part of the Executive branch that directly advises the President of the United States in budgetary issues.

This is an important Office that helps the President to prepare the annual budget for the different government departments. It assists the President in developing the correct budget and coordinates with the legislative branch because the budget has to be discussed and approved in Congress. If Congress has some comments, the Office needs to prepare the answers.